b quark

or b-quark

noun

1. Physics. bottom quark.

Example Sentences

Some rare decays of a B quark involve a daisy chain of reactions, ending in a different, lighter kind of quark and a pair of lightweight particles called leptons, either electrons or their plump cousins, muons.

From New York Times

The main character, or perhaps villain, in this drama is a particle called a B quark, one of six varieties of quark that compose heavier particles like protons and neutrons.

From New York Times

The Higgs field uses the Higgs boson to interact with other particles, like the b quark, and give them mass.

From Scientific American

Both particles contain one beauty, or b, quark, one strange quark and one down quark.

From Scientific American

Their “spin” changes their configuration around, in the Xi_b’- state, the spins of the two lighter quarks point in the opposite direction to the b quark, whereas in the Xi_b*- state they are aligned.

From Forbes